Night-latch construction.



H. G. VOIGHT.

NIGHT LATCH CONSTRUCTION.

APPLICATION rum) NOV.16, 1009.

9 5 3 07 5 Patented Mar. 29, 1910.

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NIGHT LATCH CONSTRUCTION. APPLICATION FILED NOV. 15, 1909.

Patented Mar. '29, 1910.

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UNITED STATES PATENT OFFICE.

HENRY G. VOIG-I-IT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL &ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATIONOF CONNECTICUT.

NIGHT-LATCH CONSTRUCTION.

Specification of Letters Patent.

Application filed November 15, 1909.

Patented Mar. 29, 1910.

Serial No. 528,057.

T 0 all whom it may concern:

Be it known that I, HENRY G. Vorerrr, a citizen of the United States,residing at New Britain, county of Hartford, State of Connecticut, haveinvented certain new and useful Improvements in Night-LatchConstruction, of which the following is a full, clear, and exactdescription.

My invention relates to improvements in looks and latches andparticularly to a so called night latch mechanism, the object being toimprove the construction of such a device in a number of respects ashereinafter more fully pointed out.

In the drawings, Figure 1 is an edge View of my invention as applied toa door, the portion of the door being in section. Fig. 2 is a front viewof the latch mechanism in position on a door. Fig. 3 is a side elevationof a detail. 1 1g. 4: is a front edge elevation of the detail shown inFig. 3. Fig. 5 is a side elevation of a part of the latch frame. Fig. 6is a side elevation of other details. Fig. 7 is a perspective view ofthe latch frame with the internal parts removed. Fig. 8 is a view of theunder side of the main body of the latch frame, showing the arrangementof the internal parts. Fig. 9 is a view of the base plate of the latchframe. Fig. 10 is a View of the inner end of a pin cylinder lock such asemployed with the latch mechanism.

Roughly speaking, the purpose of this invention is to obtain economieshitherto unobtained; to permit certain internal parts to be standardizedwhereby the same may be used with a great variety of external finishingplates or covers of any desired design; to combine a structure which asa whole may be applied to a door in such a manner as to be held theretowith the greatest security.

In the drawings 1 represents what I will term a foundation plate, whichis arranged 1210 be fixedly secured to the inner side of a oor.

2 represents what I will term a skeleton frame.

3 is the face plate carried by the skeleton frame 2.

4 is the latch bolt.

5 is a knob.

6 is a thumb piece such as provided for stop work, so-called, by whichthe latch may be dogged.

It will be unnecessary for me to describe at length the latch mechanismemployed for the retraction of the latch bolt 4 since any suitablemechanism may be provided. This latch mechanism is suitably mountedwithin the skeleton frame 2 and the knob 5 and thumb piece 6 arelikewise mounted therein.

7 is an ornamental cap or scalp which may be of any desired design andwhich is placed over the skeleton frame 2 so as to cover the same andgive to the lock the desired ornamental appearance. Each scalp 7 may hemade from sheet metal and since the said scalp constitutes no workingpart, it is obvious that any desired design may be adopted. The scalphas a passage in its upper face to afford clearance for the knob 5 andit likewise has another passage to afford clearance for the thumb piece6 when the latter is provided. That part of the skeleton frame 2 justbelow these clearance passages in the scalp is so designed as to closethe opening that would otherwise be present, producing a sort of paneleffect. By this arrangement it will be seen that each latch may be madeup complete, save for its external ornamental appearance. This permitsthe manufacturer to manufacture a standard design so far as concerns thelatch mechanism, modifying only the scalp for the purpose of providingdifferent ornamentation. The skeleton frame 2 may be secured in anydesired manner to the foundation plate 1, it being preferable to havesaid parts snugly fitted. As a final binder, a screw may be passed downthrough a boss 8, said screw being arranged to take into a threadedopening 9 in the foundation plate.

10 is a roll-back carried by the foundation plate and arranged to beoperated by a keycontrolled mechanism at the outer side of the door; inthis case, the key-controlled mechanism comprises a pin tumblerconstruction in which 11 represents a pin tumbler lock having offsetears 12-12 and a threaded flange 13.

14-14 are screws passing through the foundation plate 1 and taking intothreaded openings in the bosses 12-12.

13 is a ring-like flanged extension, the same being threaded on thethreaded edge of the flange 13.

15 is a spindle connecting the key-controlled mechanism with theroll-back 10.

In assembling the lock, it is preferable to first secure the cylinderlock to the foundation plate. lVhen this is done, the ring 13 isremoved; the cylinder lock is passed through an opening in the door, asshown in Fig-l, and the plate 1 is secured to the door by ordinary woodscrews. By adjusting the screws 14:, the outer end of the cylinder lock,viz., the flange 13, may be adjusted to the right position relatively tothe surface of the outside of the door. The flanged eX- tension 13 maythen be applied. By setting up the screws 14:, the cylinder lock may beclamped tightly in place; the ring-like extension 13* being clampedtightly against the door around the opening in which the cylinder lockstands. The skeleton frame 2 is then applied, and, finally, the scalp 7is applied, the same being passed freely over the knob 5 and button 6,and being secured in place by means of wood screws 16, as shown in Fig.2.

hat I claim is:

1. In a night latch, a frame for supporting the mechanism thereof, aknob and latch mechanism carried thereby, a scalp plate adapted to saidframe, said scalp plate having a clearance passage for said knob andcovering said latch mechanism.

2. In a night latch, a frame for supporting the mechanism thereof, aknob carried thereby, a scalp plate adapted to said frame, said scalpplate having a clearance passage for said knob, that part of the framesurrounding the base of the knob operating in conjunction with the baseof the knob to close said clearance passage.

3. In a night latch, a frame for supporting the mechanism thereof, aknob carried,

thereby, a scalp plate adapted to said frame, said scalp plate having aclearance passage for said knob, means for holding the case in place ona door, and separate means for holding said scalp in place.

4L. In a night latch, a frame for supporting the latch mechanism, aplurality of latch mechanism operating and controlling devices carriedby said frame and projecting therefrom, a scalp covering for said frame,said scalp covering having clearance for said operating and controllingmechanism, and means to close said clearance passages when the parts areassembled.

HENRY G. VOIGHT.

Vitnesses M. S. VVIARD, H. S. PARKER.

